Podcast
Questions and Answers
Which type of seed is the original or first seed of a variety with 100% genetic and physical purity?
Which type of seed is the original or first seed of a variety with 100% genetic and physical purity?
- Foundation seed
- Commercial seed
- Nucleus seed (correct)
- Breeder seed
What is the source for the initial and recurring increase of foundation seed?
What is the source for the initial and recurring increase of foundation seed?
- Nucleus seed
- Commercial seed
- Improved seed
- Breeder seed (correct)
Which type of seed is synonymous with breeder seed in Nepal?
Which type of seed is synonymous with breeder seed in Nepal?
- Nucleus seed (correct)
- Foundation seed
- Commercial seed
- Improved seed
What is the original or first seed of a variety available with the producing breeder or any other recognized breeder of the crop?
What is the original or first seed of a variety available with the producing breeder or any other recognized breeder of the crop?
Which type of seed is produced by research institutes and agricultural universities under the supervision of plant breeders to provide genetically pure seed for foundation seed production?
Which type of seed is produced by research institutes and agricultural universities under the supervision of plant breeders to provide genetically pure seed for foundation seed production?
Which seed class is the purest and is produced from hybridization, selection, and mutation?
Which seed class is the purest and is produced from hybridization, selection, and mutation?
Which seed class is the progeny of certified seed and is produced to maintain genetic identity and purity standards?
Which seed class is the progeny of certified seed and is produced to maintain genetic identity and purity standards?
Which type of seed is recommended for one generation of use and is produced by crossing homozygous inbred lines?
Which type of seed is recommended for one generation of use and is produced by crossing homozygous inbred lines?
Which type of seed has higher production potential than hybrids and is produced by inter-crossing multiple selected varieties?
Which type of seed has higher production potential than hybrids and is produced by inter-crossing multiple selected varieties?
Which type of seed is produced by mutation breeding with mutagenic agents and has greater potential in yield and quality than other seed types?
Which type of seed is produced by mutation breeding with mutagenic agents and has greater potential in yield and quality than other seed types?
What is the primary purpose of nucleus and breeder's seed production?
What is the primary purpose of nucleus and breeder's seed production?
What does the Harrington (1952) procedure for nucleus seed maintenance involve?
What does the Harrington (1952) procedure for nucleus seed maintenance involve?
What are the standards for processing plants and field/seed standards set by the seed certification agency?
What are the standards for processing plants and field/seed standards set by the seed certification agency?
What do seed certification standards refer to?
What do seed certification standards refer to?
Why do different seed types have specific purity, inner matter, other crop seed, weed seed, and germination requirements?
Why do different seed types have specific purity, inner matter, other crop seed, weed seed, and germination requirements?
What is the purpose of sowing seeds in a 'nucleus' nursery?
What is the purpose of sowing seeds in a 'nucleus' nursery?
What action should be taken during the growth cycle of the nucleus plot?
What action should be taken during the growth cycle of the nucleus plot?
What is the purpose of roguing out non-typical plants?
What is the purpose of roguing out non-typical plants?
What is the purpose of cleaning and treating seed with fungicide and insecticide?
What is the purpose of cleaning and treating seed with fungicide and insecticide?
What methods are used for maintaining Breeder’s Seed of established varieties?
What methods are used for maintaining Breeder’s Seed of established varieties?
What method improves the genetic purity of established varieties by harvesting and examining seeds from 2,000 to 2,500 typical plants?
What method improves the genetic purity of established varieties by harvesting and examining seeds from 2,000 to 2,500 typical plants?
How is breeder's seed of local varieties maintained to ensure genetic purity?
How is breeder's seed of local varieties maintained to ensure genetic purity?
What is necessary for safeguarding the variety in case of failure during the foundation seed multiplication phase?
What is necessary for safeguarding the variety in case of failure during the foundation seed multiplication phase?
How is nucleus seed of inbred lines maintained to prevent contamination?
How is nucleus seed of inbred lines maintained to prevent contamination?
How is breeder's seed of non-inbred lines produced to maintain genetic purity?
How is breeder's seed of non-inbred lines produced to maintain genetic purity?
How can the breeder's seed of established cross-fertilised crop varieties be maintained by raising the seed crop in isolation?
How can the breeder's seed of established cross-fertilised crop varieties be maintained by raising the seed crop in isolation?
What is the purpose of mass selection in maintaining breeder's seed of cross-fertilised crops?
What is the purpose of mass selection in maintaining breeder's seed of cross-fertilised crops?
What is the purpose of modified mass selection in maintaining breeder's seed?
What is the purpose of modified mass selection in maintaining breeder's seed?
Why is a system of carry over seed considered the best insurance against failure in breeder's seed production?
Why is a system of carry over seed considered the best insurance against failure in breeder's seed production?
What is the significance of thoroughly roguing the seed crop at various stages in maintaining breeder's seed of established varieties?
What is the significance of thoroughly roguing the seed crop at various stages in maintaining breeder's seed of established varieties?
Study Notes
- Breeder's seed of local varieties can be maintained by growing them in isolated plots and rigorously roguing during crop growth.
- Bulk selection method improves genetic purity of established varieties by harvesting and examining seeds from 2,000 to 2,500 typical plants.
- Carry-over seed is necessary for safeguarding the variety in case of failure during the foundation seed multiplication phase.
- Inbred lines' nucleus seed is maintained through hand pollination and selecting selfed or sibbed ears for increase.
- Nucleus seed is planted on clean fertile land and isolated from other crops to prevent contamination.
- Roguing is done to remove off-types from isolated fields and careful examination is necessary to detect all off-types.
- Nucleus seed can be harvested and shelled after drying, and the remaining seed is bulked and stored under ideal conditions.
- Breeder's seed of inbred lines is planted in isolated fields and cared for to maintain maximum genetic purity.
- Hand pollination is also used to increase nucleus seed of non-inbred lines, with careful examination of sibbed ears for off-types.
- Breeder's seed of non-inbred lines is produced by using seed from nucleus seed and caring for it in isolated fields to maintain genetic purity.
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Description
Test your knowledge of crop harvesting and testing procedures with this quiz. Learn about the best timing for pulling out plants, proper storage methods, and the examination of samples for yield results.
